Narrow-headed Vole vs Smith's Thorius

Microtus gregalis compared with Thorius smithi

Key Differences

• Narrow-headed Vole is Least Concern while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Narrow-headed Vole	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Cricetidae	Plethodontidae
Genus	Microtus	Thorius
Species	Microtus gregalis	Thorius smithi

Evolutionary Relationship

Narrow-headed Vole and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Narrow-headed Vole

LC — Least Concern

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Narrow-headed Vole	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Narrow-headed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.